Translation: "Do vat die Gestapo sess or ve vill see to it dat you suffer die conseqvences!"
Maybe some effort should be expended teaching law enforcement personnel to issue LEGAL "instructions."
More importantly, the prudent citizen would be very very very reluctant to empower the police to make primary stops of any kind. Because the attitude of the State is do what we say or we can and will shoot you. This is an implicit threat because of the fact that Police carry loaded firearms.